I Know This Much Is True - Chapter 2 - pages 9-46

The dying and death of the twin's mother was felt differentely by the boys. Dominick, the writer visits and sees physically how much his mother is changing through her illness. Thomas, the brother has times that he is in his own world and is obsessed with his own wants. Then there are times that he realizes that his mother is indeed dying. Dominick struggles with his own grief and having to watch after his brother, and the frustration that it brings. Even after their mother died, Dominick stayed at the hospital, after their step-father had left, to deal with Thomas' delayed reaction to hearing of her death.